Upon sight of these picturesque cavalrymen, who feared neither hardship nor danger, the boys were surprised at the youth of most of them, and for whom it had been said, “war is the great and only poem, their unique dream and faith.”

These bold riders wore dark-brown caftans, and full headdress, instead of the usual lambskin cap.

The sons of princes, khans or beks, the officers of these troops were keenly shrewd and intelligent, as well as fiery and impetuous.

They gave the envoys from army headquarters a respectful hearing, and in every way set back a common belief that the Turkomans generally were merely hordes without discipline.

Of greater interest than all else in the proceedings, as far as Billy and Henri were concerned, was the statement from a Turkoman chief brought out by inquiry from Salisky, and by the latter interpreted, that only the day before, traveling due northwest, the brown riders had met the red-clad Nikita and his comrade Cossacks at the crossing of the Duna River.

“One day’s ride, he says,” translated Salisky, “but he measures by the gait of a horse. Even counting upon the fact that the Cossacks have done some galloping since this meeting, it is no task to overhaul them now in our aeroplanes, providing, of course, we do not miss their trail. I will tell you what we will do,” continued the scout; “Marovitch and I will chance an extra dozen hours for this side expedition, but that is the limit of our discretion. We have no choice but to return to headquarters, and depend upon you drivers to make up most of the lost time.”

“You will get all there is in the motors,” assured Henri.

The upshoot of the biplanes presented a spectacular leave-taking to the horsemen, and they raised their lances on high in appreciation of the show.

The twelve hours allotted would have been all too brief in which to serve the purpose intended had the searching party been dependent upon ordinary means of locomotion, and with less wide range of vision.

But in less than three hours the biplanes had swept across the river mentioned by the Turkoman as the place of meeting with Nikita, and onrushed, with occasional deviations right and left from straight course, at hurricane speed.